SplitIterator (Dataflow Library Distribution Project 8.0.0-98 API)

All Known Implementing Classes:

CompressionSplitIterator, SingleSplitIterator
```
public interface SplitIterator
```
A forward-only iterator over data splits with associated locality information. The provided locality information can be used to help decide how to assign splits to cluster nodes for processing.

See Also:

DataSplit

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`List<String>`	`getLocalityInfo()`	Get the list of machines for which access to the current split is local.
`DataSplit`	`getSplit()`	Get the current split in the iterated set.
`boolean`	`next()`	Advance to the next data split in the iterated set.

- Method Detail
  - next
```
boolean next()
      throws IOException
```
    Advance to the next data split in the iterated set.
    
    Returns:
    
    true if there is another split, otherwise false.
    
    Throws:
    
    IOException
  - getSplit
```
DataSplit getSplit()
```
    Get the current split in the iterated set.
    
    Returns:
    
    the split currently selected
  - getLocalityInfo
```
List<String> getLocalityInfo()
```
    Get the list of machines for which access to the current split is local. An empty list indicates the split is local to no node (or all nodes).
    
    Returns:
    
    the machines where the currently selected split is local. If the split is local to no machine (or to all), this list is empty.